Smithsonian Magazine has published some examples of the work of John C. Guntzelman, who has colorized Civil War photos by Matthew Brady and Alexander Gardner in his book The Civil War in Color: A Photographic Reenactment of the War Between the States. I admit that I was a skeptic when I heard of the process. Colorization often reduces fine art like cinema or old photos to garish cartoons. Yet, the results are stunning. The article is well-worth reading for a taste of what the full book contains.